Overview
Diagnostic data for the MJ9DFH
- Manufacturer
- Marelli
- Mapped codes
- 611
- With description
- 374
Map Decoder stores 611 distinct diagnostic trouble codes for the Marelli MJ9DFH. Each one carries the address and the byte values measured on a real file, which is what lets a removal write the value the ECU actually expects instead of a guessed constant. See DTC removal for the workflow.
Code list
MJ9DFH diagnostic trouble codes
| Code | Description |
|---|---|
P0001 | — |
P0002 | Fuel volume regulator control -circuit range/performance |
P0003 | Fuel volume regulator control -circuit low |
P0004 | Fuel volume regulator control -circuit high |
P0031 | Heated oxygen sensor (HO2S) 1, bank 1, heater control -circuit low |
P0032 | Heated oxygen sensor (HO2S) 1, bank 1, heater control -circuit high |
P0037 | Heated oxygen sensor (HO2S) 2, bank 1, heater control -circuit low |
P0038 | Heated oxygen sensor (HO2S) 2, bank 1, heater control -circuit high |
P0045 | Turbo/super charger boost control solenoid -circuit open |
P0047 | Turbo/super charger boost control solenoid -circuit low |
P0048 | Turbo/super charger boost control solenoid -circuit high |
P004A | 'Turbocharger/Supercharger Boost Control 'B' Circuit/Open' |
P004B | 'Turbocharger/Supercharger Boost Control 'B' Circuit Range/Performance' |
P004C | 'Turbocharger/Supercharger Boost Control 'B' Circuit Low' |
P004D | 'Turbocharger/Supercharger Boost Control 'B' Circuit High' |
P0054 | Heated oxygen sensor (HO2S), bank 1, sensor 2 -heater resistance |
P005E | 'Turbocharger/Supercharger Boost Control 'B' Supply Voltage Circuit Low' |
P005F | 'Turbocharger/Supercharger Boost Control 'B' Supply Voltage Circuit High' |
P0069 | Manifold absolute pressure (MAP) sensor/barometric pressure (BARO) sensor correlation |
P006D | Barometric Pressure - Turbocharger/Supercharger Inlet Pressure Correlation |
P006E | 'Turbocharger/Supercharger Boost Control 'A' Supply Voltage Circuit Low' |
P006F | 'Turbocharger/Supercharger Boost Control 'A' Supply Voltage Circuit High' |
P0070 | Outside air temperature sensor -circuit malfunction |
P0071 | Outside air temperature sensor -range/performance problem |
P0072 | Outside air temperature sensor -low input |
P0073 | Outside air temperature sensor -high input |
P0087 | Fuel rail/system pressure too low |
P0089 | Fuel pressure regulator -performance problem |
P0090 | Fuel metering solenoid -open circuit |
P0095 | Intake air temperature (IAT) sensor 2 -circuit malfunction |
P0096 | Intake air temperature (IAT) sensor 2 -circuit range/performance |
P0097 | Intake air temperature (IAT) sensor 2 -circuit low input |
P0098 | Intake air temperature (IAT) sensor 2 -circuit high input |
P00AF | 'Turbocharger/Supercharger Boost Control 'A' Module Performance' |
P00B0 | 'Turbocharger/Supercharger Boost Control 'B' Module Performance' |
P00CD | — |
P00F3 | — |
P00F4 | — |
P00F5 | — |
P0100 | Mass air flow (MAF) sensor/volume air flow (VAF) . sensor circuit malfunction |
P0101 | Mass air flow (MAF) sensor/volume air flow (VAF) sensor range/performance problem |
P0102 | Mass air flow (MAF) sensor/volume air flow (VAF) sensor low input |
P0103 | Mass air flow (MAF) sensor/volume air flow (VAF) sensor high input |
P0110 | Intake air temperature (IAT) sensor -circuit malfunction |
P0111 | 'Intake air temperature (IAT) sensor''' range/performance problem' |
P0112 | Intake air temperature (IAT) sensor -low input |
P0113 | Intake air temperature (IAT) sensor -high input |
P0114 | Intake air temperature (IAT) sensor -circuit intermittent |
P0115 | Engine coolant temperature -(ECT) sensor circuit malfunction |
P0116 | Engine coolant temperature (ECT) sensor range/performance problem |
P0117 | Engine coolant temperature (ECT) sensor -low input |
P0118 | Engine coolant temperature (ECT) sensor -high input |
P0120 | Throttle position (TP) sensor A/accelerator pedal position (APP) sensor A -circuit malfunction |
P0127 | Intake air temperature too high |
P0130 | Heated oxygen sensor (HO2S) 1, bank 1 -circuit malfunction |
P0136 | Heated oxygen sensor (HO2S) 2, bank 1 circuit malfunction |
P0139 | Heated oxygen sensor (HO2S) 2, bank 1 -slow response |
P0168 | Fuel temperature too high |
P0172 | System too rich, bank 1 |
P0180 | Fuel temperature sensor A -circuit malfunction |
P0181 | Fuel temperature sensor A -range/performance problem |
P0182 | Fuel temperature sensor A -low input |
P0183 | Fuel temperature sensor A -high input |
P0190 | Fuel rail pressure (FRP) sensor -circuit malfunction |
P0191 | Fuel rail pressure (FRP) sensor -range/performance problem |
P0192 | Fuel rail pressure (FRP) sensor -low input |
P0193 | Fuel rail pressure (FRP) sensor -high input |
P01C4 | — |
P0201 | Injector 1 -circuit malfunction |
P0202 | Injector 2 -circuit malfunction |
P0203 | Injector 3 -circuit malfunction |
P0204 | Injector 4 -circuit malfunction |
P0217 | Engine over temperature condition |
P0219 | Engine over speed condition |
P0220 | Throttle position (TP) sensor B/accelerator pedal position (APP) sensor B -circuit malfunction |
P0230 | Fuel pump relay -circuit malfunction |
P0234 | Engine boost condition -limit exceeded |
P0235 | Manifold absolute pressure (MAP) sensor A, TC system circuit malfunction |
P0236 | Manifold absolute pressure (MAP) sensor A, TC system range/performance problem |
P0237 | Manifold absolute pressure (MAP) sensor A, TC system low input |
P0238 | Manifold absolute pressure (MAP) sensor A, TC system high input |
P0244 | Turbocharger (TC) wastegate regulating valve A range/performance problem |
P025B | Fuel Pump Module Control Circuit Range/Performance |
P025C | Fuel Pump Module Control Circuit Low |
P025D | Fuel Pump Module Control Circuit High |
P0261 | Injector 1 -circuit low |
P0262 | Injector 1 -circuit high |
P0263 | Cylinder 1 -contribution/balance fault |
P0264 | Injector 2 -circuit low |
P0265 | Injector 2 -circuit high |
P0266 | Cylinder 2 -contribution/balance fault |
P0267 | Injector 3 -circuit low |
P0268 | Injector 3 -circuit high |
P0269 | Cylinder 3 -contribution/balance fault |
P026A | — |
P0270 | Injector 4 -circuit low |
P0271 | Injector 4 -circuit high |
P0272 | Cylinder 4 -contribution/balance fault |
P027B | — |
P0335 | Crankshaft position (CKP) sensor -circuit malfunction |
P0340 | Camshaft position (CMP) sensor A, bank 1 circuit malfunction |
P0341 | Camshaft position (CMP) sensor A, bank 1 range/performance problem |
P0342 | Camshaft position (CMP) sensor A, bank 1 -low input |
P0343 | Camshaft position (CMP) sensor A, bank 1 -high input |
P0380 | Glow plugs, circuit A -malfunction |
P0383 | Glow plug control module -circuit low |
P0384 | Glow plug control module -circuit high |
P0401 | Exhaust gas recirculation (EGR) system -insufficient flow detected |
P0402 | Exhaust gas recirculation (EGR) system -excessive flow detected |
P0404 | Exhaust gas recirculation (EGR) system range/performance problem |
P0405 | Exhaust gas recirculation (EGR) valve position sensor A low input |
P0406 | Exhaust gas recirculation (EGR) valve position sensor A high input |
P0407 | Exhaust gas recirculation (EGR) valve position sensor B low input |
P0408 | Exhaust gas recirculation (EGR) valve position sensor B high input |
P0409 | Exhaust gas recirculation (EGR) sensor A circuit malfunction |
P040A | 'Exhaust Gas Recirculation Temperature Sensor 'A' Circuit' |
P040B | 'Exhaust Gas Recirculation Temperature Sensor 'A' CircuitRange/Performance' |
P040C | 'Exhaust Gas Recirculation Temperature Sensor 'A' Circuit Low' |
P040D | 'Exhaust Gas Recirculation Temperature Sensor 'A' Circuit High' |
P040E | 'Exhaust Gas Recirculation Temperature Sensor 'A' Circuit Intermittent/Erratic' |
P041A | 'Exhaust Gas Recirculation Temperature Sensor 'B' Circuit' |
P041B | 'Exhaust Gas Recirculation Temperature Sensor 'B' Circuit Range/Performance' |
P041C | 'Exhaust Gas Recirculation Temperature Sensor 'B' Circuit Low' |
P041D | 'Exhaust Gas Recirculation Temperature Sensor 'B' Circuit High' |
P0420 | Catalytic converter system, bank 1 -efficiency below threshold |
P044A | 'Exhaust Gas Recirculation Sensor 'C' Circuit' |
P045A | 'Exhaust Gas Recirculation 'B' Control Circuit' |
P045B | 'Exhaust Gas Recirculation 'B' Control Circuit Range/Performance' |
P045C | 'Exhaust Gas Recirculation 'B' Control Circuit Low' |
P045D | 'Exhaust Gas Recirculation 'B' Control Circuit High' |
P045E | 'Exhaust Gas Recirculation 'B' Control Stuck Open' |
P046E | 'Exhaust Gas Recirculation Sensor 'B' Circuit Range/Performance' |
P047F | 'Exhaust Pressure Control Valve 'A' Stuck Open' |
P0480 | Engine coolant blower motor 1 -circuit malfunction |
P0481 | Engine coolant blower motor 2 -circuit malfunction |
P0482 | Engine coolant blower motor 3 -circuit malfunction |
P0486 | Exhaust gas recirculation (EGR) valve position sensor B -circuit malfunction |
P0487 | Exhaust gas recirculation (EGR) system, throttle position control -circuit malfunction |
P0488 | Exhaust gas recirculation (EGR) system, throttle position control -range/performance |
P0489 | Exhaust gas recirculation (EGA) system -circuit low |
P048C | Exhaust Pressure Control Valve Position Sensor/Switch Circuit Range/Performance |
P048D | Exhaust Pressure Control Valve Position Sensor/Switch Circuit Low |
P048E | Exhaust Pressure Control Valve Position Sensor/Switch Circuit High |
P0490 | Exhaust gas recirculation (EGA) system -circuit high |
P0500 | Vehicle speed sensor (VSS) -circuit malfunction |
P0501 | Vehicle speed sensor (VSS) -range/performance problem |
P0503 | Vehicle speed sensor (VSS) -intermittent/erratic/high input |
P0504 | Brake switch -A/B correlation |
P0512 | Starter request circuit -malfunction |
P0513 | Incorrect immobilizer key |
P0520 | Engine oil pressure sensor/switch -circuit malfunction |
P0521 | Engine oil pressure sensor/switch -range/performance problem |
P0524 | Engine oil pressure too low |
P052F | — |
P0530 | AC refrigerant pressure sensor -circuit malfunction |
P0532 | AC refrigerant pressure sensor -low input |
P0533 | AC refrigerant pressure sensor -high input |
P053B | Positive Crankcase Ventilation Heater Control Circuit Low |
P053C | Positive Crankcase Ventilation Heater Control Circuit High |
P053E | — |
P0547 | Exhaust gas temperature sensor, bank 2 sensor 1 circuit malfunction |
P0548 | Exhaust gas temperature sensor, bank 2 sensor 1 circuit low |
P0549 | Exhaust gas temperature sensor, bank 2 sensor 1 circuit high |
P0555 | Brake servo pressure sensor -circuit malfunction |
P0560 | System voltage malfunction |
P0562 | System voltage -low |
P0563 | System voltage -high |
P0564 | Cruise control system, multi -function switch input A -circuit malfunction |
P0571 | Cruise/brake switch A -circuit malfunction |
P0572 | Cruise/brake switch A -circuit low |
P0576 | Cruise control system -input circuit low |
P0578 | Cruise control system, multi -function switch input A circuit stuck |
P0579 | Cruise control system, multi -function switch input A circuit range/performance |
P05A4 | — |
P05A5 | — |
P05FD | — |
P0601 | Engine control module (ECM) -memory check sum error |
P0602 | Engine control module (ECM) -programming error |
P0603 | Engine control module (ECM) -KAM error |
P0604 | Engine control module (ECM) -RAM error |
P0605 | Engine control module (ECM) -ROM error |
P0606 | Engine control module (ECM)/powertrain control module (PCM) -processor fault |
P0607 | Control module -performance problem |
P060A | Internal Control Module Monitoring Processor Performance |
P060B | Internal Control Module A/D Processing Performance |
P060C | Internal Control Module Main Processor Performance |
P060E | Internal Control Module Throttle Position Performance |
P0610 | Control module -vehicle options error |
P0611 | Fuel injector control module -performance problem |
P0615 | Starter motor relay -circuit malfunction |
P0616 | Starter motor relay -circuit low |
P0617 | Starter motor relay -circuit high |
P061D | Internal Control Module Engine Air Mass Performance |
P061F | Internal Control Module Throttle Actuator Controller Performance |
P0621 | Alternator warning lamp -circuit malfunction |
P0625 | Generator field terminal -circuit low |
P0626 | Generator field terminal -circuit high |
P0628 | Fuel pump control -circuit low |
P0629 | Fuel pump control -circuit high |
P062A | 'Fuel Pump 'A' Control Circuit Range/Performance' |
P062B | Internal Control Module Fuel Injector Control Performance |
P062D | Fuel Injector Driver Circuit Performance |
P062F | Internal Control Module EEPROM Error |
P0638 | Throttle actuator control, bank 1 -range/performance problem |
P0639 | Throttle actuator control, bank 2 -range/performance |
P0641 | Sensor reference voltage A -circuit open |
P0645 | Air conditioning (AC) |
P0646 | AC compressor clutch relay -circuit low |
P0647 | AC compressor clutch relay -circuit high |
P064A | Fuel Pump Control Module |
P0651 | Sensor reference voltage B -circuit open |
P0657 | Actuator supply voltage -circuit open |
P0658 | Actuator supply voltage -circuit low |
P0659 | Actuator supply voltage -circuit high |
P065A | Generator System Performance |
P065B | Generator Control Circuit Range/Performance |
P065C | Generator Mechanical Performance |
P066A | Cylinder 1 Glow Plug Control Circuit Low |
P066C | Cylinder 2 Glow Plug Control Circuit Low |
P066E | Cylinder 3 Glow Plug Control Circuit Low |
P0670 | Glow plug control module -circuit malfunction |
P0671 | Glow plug, cylinder 1 -circuit malfunction |
P0672 | Glow plug, cylinder 2 -circuit malfunction |
P0673 | Glow plug, cylinder 3 -circuit malfunction |
P0674 | Glow plug, cylinder 4 -circuit malfunction |
P067A | Cylinder 4 Glow Plug Control Circuit Low |
P0683 | Glow plug control module/ECM/PCM communication -malfunction |
P0684 | Glow plug control module/ECM/PCM communication range/performance |
P0685 | ECM/PCM power relay -circuit open |
P0686 | ECM/PCM power relay -circuit low |
P0687 | Engine control relay -short to earth |
P068A | ECM/PCM Power Relay De-Energized Performance - Too Early |
P0691 | Engine coolant blower motor 1 -short to earth |
P0692 | Engine coolant blower motor 1 -short to positive |
P0693 | Engine coolant blower motor 2 -short to earth |
P0694 | Engine coolant blower motor 2 -short to positive |
P0697 | Sensor reference voltage C -circuit open |
P06DA | — |
P06DB | — |
P06DC | — |
P06DD | — |
P06DE | — |
P06E5 | — |
P06EA | — |
P06EB | — |
P0701 | Transmission control system -range/performance problem |
P0703 | Torque converter/brake switch B -circuit malfunction |
P0805 | Clutch position sensor -circuit malfunction |
P0806 | Clutch position sensor -range/performance problem |
P0807 | Clutch position sensor -low input |
P0808 | Clutch position sensor -high input |
P080A | Clutch Position Not Learned |
P0810 | Clutch position control error |
P0812 | Reverse gear -input circuit malfunction |
P081D | Neutral Input Circuit |
P0831 | Clutch pedal position (CPP) switch A -low input |
P0832 | Clutch pedal position (CPP) switch A -high input |
P083F | 'Clutch Pedal Switch 'A'/'B' Correlation' |
P086A | — |
P086B | — |
P086C | — |
P086D | — |
P086E | — |
P086F | — |
P0A1A | Generator Control Module |
P1104 | — |
P1116 | — |
P11C7 | — |
P1204 | — |
P1205 | — |
P1206 | — |
P1215 | — |
P1219 | — |
P1220 | — |
P1224 | — |
P1248 | — |
P1277 | — |
P1278 | — |
P1279 | — |
P1301 | — |
P1302 | — |
P1303 | — |
P1304 | — |
P1306 | — |
P13E0 | — |
P13E1 | — |
P13E3 | — |
P13E5 | — |
P13E6 | — |
P13E7 | — |
P13E8 | — |
P13E9 | — |
P13EA | — |
P13EB | — |
P13EC | — |
P13F8 | — |
P13F9 | — |
P13FE | — |
P13FF | — |
P141C | — |
P1451 | — |
P145A | — |
P145C | — |
P145D | — |
P145E | — |
P1483 | — |
P14B0 | — |
P14B1 | — |
P14B2 | — |
P14B3 | — |
P14D0 | — |
P1506 | — |
P1507 | — |
P1508 | — |
P1512 | — |
P1515 | — |
P1518 | — |
P1540 | — |
P1541 | — |
P1542 | — |
P1543 | — |
P1563 | — |
P1580 | — |
P1581 | — |
P1582 | — |
P1583 | — |
P1584 | — |
P160C | — |
P1612 | — |
P161D | — |
P161E | — |
P161F | — |
P165B | — |
P16AA | — |
P16AB | — |
P1732 | — |
P1733 | — |
P1734 | — |
P1735 | — |
P181D | — |
P1850 | — |
P1851 | — |
P186F | — |
P1915 | — |
P1946 | — |
P1C5F | — |
P1D30 | — |
P1D45 | — |
P1D6D | — |
P1D73 | — |
P1D80 | — |
P2000 | NOx Adsorber Efficiency Below Threshold Bank 1 |
P2002 | Diesel Particulate Filter Efficiency Below Threshold Bank 1 |
P202F | Reductant/Regeneration Supply Control Circuit Range/Performance |
P2031 | Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 2 |
P2032 | Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 2 |
P2033 | Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 2 |
P2044 | Reductant Temperature Sensor Circuit Low |
P2045 | Reductant Temperature Sensor Circuit High |
P2062 | Reductant/Regeneration Supply Control Circuit/Open |
P2063 | Reductant/Regeneration Supply Control Circuit Low |
P2064 | Reductant/Regeneration Supply Control Circuit High |
P2080 | Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 1 |
P2082 | Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 1 |
P20EE | SCR NOx Catalyst Efficiency Below Threshold Bank 1 |
P2100 | Throttle Actuator 'A' Control Motor Circuit/Open |
P2101 | Throttle Actuator 'A' Control Motor Circuit Range/Performance |
P2102 | Throttle Actuator 'A' Control Motor Circuit Low |
P2103 | Throttle Actuator 'A' Control Motor Circuit High |
P2108 | Throttle Actuator Control Module Performance |
P2111 | Throttle Actuator Control System - Stuck Open |
P2112 | Throttle Actuator Control System - Stuck Closed |
P2118 | Throttle Actuator Control Motor Current Range/Performance |
P2119 | Throttle Actuator Control Throttle Body Range/Performance |
P2121 | Throttle/Pedal Position Sensor/Switch 'D' Circuit Range/Performance |
P2122 | Throttle/Pedal Position Sensor/Switch 'D' Circuit Low |
P2123 | Throttle/Pedal Position Sensor/Switch 'D' Circuit High |
P2126 | Throttle/Pedal Position Sensor/Switch 'E' Circuit Range/Performance |
P2127 | Throttle/Pedal Position Sensor/Switch 'E' Circuit Low |
P2128 | Throttle/Pedal Position Sensor/Switch 'E' Circuit High |
P2135 | Throttle/Pedal Pos Sensor/Switch A / B Voltage Correlation |
P2138 | Throttle/Pedal Pos Sensor/Switch D / E Voltage Correlation |
P213A | Exhaust Gas Recirculation Throttle Control Circuit 'B' /Open |
P213B | Exhaust Gas Recirculation Throttle Control Circuit 'B' Range/Performance |
P213C | Exhaust Gas Recirculation Throttle Control Circuit 'B' Low |
P213D | Exhaust Gas Recirculation Throttle Control Circuit 'B' High |
P2141 | Exhaust Gas Recirculation Throttle Control Circuit 'A' Low |
P2142 | Exhaust Gas Recirculation Throttle Control Circuit 'A' High |
P2146 | Fuel Injector Group 'A' Supply Voltage Circuit/Open |
P2147 | Fuel Injector Group 'A' Supply Voltage Circuit Low |
P2148 | Fuel Injector Group 'A' Supply Voltage Circuit High |
P2149 | Fuel Injector Group 'B' Supply Voltage Circuit/Open |
P2150 | Fuel Injector Group 'B' Supply Voltage Circuit Low |
P2151 | Fuel Injector Group 'B' Supply Voltage Circuit High |
P21C7 | — |
P21C8 | — |
P21C9 | — |
P21CA | — |
P21CC | — |
P2200 | NOx Sensor Circuit Bank 1 |
P2201 | NOx Sensor Circuit Range/Performance Bank 1 |
P2202 | NOx Sensor Circuit Low Bank 1 |
P2203 | NOx Sensor Circuit High Bank 1 |
P220A | NOx Sensor Supply Voltage Circuit Bank 1 Sensor 1 |
P220B | NOx Sensor Supply Voltage Circuit Bank 1 Sensor 2 |
P220E | NOx Sensor Heater Control Circuit Range/Performance Bank 1 Sensor 1 |
P220F | NOx Sensor Heater Control Circuit Range/Performance Bank 1 Sensor 2 |
P2210 | NOx Sensor Heater Sense Circuit Low Bank 1 |
P2211 | NOx Sensor Heater Sense Circuit High Bank 1 |
P2213 | NOx Sensor Circuit Bank 2 |
P2214 | NOx Sensor Circuit Range/Performance Bank 2 |
P2215 | NOx Sensor Circuit Low Bank 2 |
P2216 | NOx Sensor Circuit High Bank 2 |
P2223 | NOx Sensor Heater Sense Circuit Low Bank 2 |
P2224 | NOx Sensor Heater Sense Circuit High Bank 2 |
P2226 | Barometric Pressure Sensor 'A' Circuit |
P2228 | Barometric Pressure Sensor 'A' Circuit Low |
P2229 | Barometric Pressure Sensor 'A' Circuit High |
P2231 | O2 Sensor Signal Circuit Shorted to Heater Circuit Bank 1 Sensor 1 |
P2234 | O2 Sensor Signal Circuit Shorted to Heater Circuit Bank 2 Sensor 1 |
P2244 | O2 Sensor Reference Voltage Performance Bank 1 Sensor 1 |
P2248 | O2 Sensor Reference Voltage Performance Bank 2 Sensor 1 |
P2263 | Turbocharger/Supercharger Boost System Performance |
P2264 | Water in Fuel Sensor Circuit |
P226D | Particulate Filter Deteriorated/Missing Substrate Bank 1 |
P2299 | Brake Pedal Position/Accelerator Pedal Position Incompatible |
P229E | NOx Sensor Circuit Bank 1 Sensor 2 |
P229F | NOx Sensor Circuit Range/Performance Bank 1 Sensor 2 |
P22AF | O2 Sensor Reference Voltage Performance Bank 1 Sensor 2 |
P2413 | Exhaust Gas Recirculation System Performance |
P241D | SCR Inducement – Forced Engine Shutdown |
P241F | EGR Cooler “B” Efficiency Below Threshold |
P242B | Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 3 |
P242C | Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 3 |
P242D | Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 3 |
P242E | Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 1 Sensor 3 |
P242F | Diesel Particulate Filter Restriction - Ash Accumulation |
P2430 | Secondary Air Injection System Air Flow/Pressure Sensor Circuit Bank 1 |
P2431 | Secondary Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance Bank 1 |
P2432 | Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1 |
P2433 | Secondary Air Injection System Air Flow/Pressure Sensor Circuit High Bank 1 |
P244A | Diesel Particulate Filter Differential Pressure Too Low Bank 1 |
P244B | Diesel Particulate Filter Differential Pressure Too High Bank 1 |
P2452 | Diesel Particulate Filter Pressure Sensor 'A' Circuit |
P2453 | Diesel Particulate Filter Pressure Sensor 'A' Circuit Range/Performance |
P2454 | Diesel Particulate Filter Pressure Sensor 'A' Circuit Low |
P2455 | Diesel Particulate Filter Pressure Sensor 'A' Circuit High |
P2456 | Diesel Particulate Filter Pressure Sensor 'A' Circuit Intermittent/Erratic |
P2457 | Exhaust Gas Recirculation Cooling System Performance |
P2458 | Diesel Particulate Filter Regeneration Duration |
P245A | Exhaust Gas Recirculation Cooler Bypass Control Circuit/Open |
P245B | Exhaust Gas Recirculation Cooler Bypass Control Circuit Range/Performance |
P245C | Exhaust Gas Recirculation Cooler Bypass Control Circuit Low |
P245D | Exhaust Gas Recirculation Cooler Bypass Control Circuit High |
P2463 | Diesel Particulate Filter Restriction - Soot Accumulation |
P246B | Vehicle Conditions Incorrect for Diesel Particulate Filter Regeneration |
P248F | EGR Cooler Bypass Control Circuit Range/Performance Bank 2 |
P24A4 | Particulate Filter Restriction – Soot Accumulation Too High Bank 1 |
P24A5 | EGR Cooler Bypass Control Stuck/Open Bank 1 |
P24A7 | EGR Cooler Coolant Pump Control Circuit/Open |
P24A8 | EGR Cooler Coolant Pump Performance/Stuck Off |
P24AA | EGR Cooler Coolant Pump Control Circuit High |
P24AE | Particulate Matter Sensor Circuit |
P24AF | Particulate Matter Sensor Circuit Range/Performance |
P24B0 | Particulate Matter Sensor Circuit Low |
P24B1 | Particulate Matter Sensor Circuit High |
P24B2 | Particulate Matter Sensor Circuit Intermittent |
P24B3 | Particulate Matter Sensor Heater Control Circuit/Open |
P24B5 | Particulate Matter Sensor Heater Control Circuit Low |
P24B6 | Particulate Matter Sensor Heater Control Circuit High |
P24B7 | Particulate Matter Sensor Heater Resistance |
P24C6 | Particulate Matter Sensor Temperature Circuit |
P24C7 | Particulate Matter Sensor Temperature Circuit Range/performance |
P24CA | Particulate Matter Sensor Temperature Circuit Intermittent |
P24D0 | Particulate Matter Sensor Supply Voltage Circuit Low |
P24D1 | Particulate Matter Sensor Regeneration Incomplete |
P24D3 | Reductant Heater “B” Sense Circuit |
P24D4 | EGR Cooler Coolant Pump Feedback Circuit |
P24DA | Particulate Matter Sensor Exhaust Sample Error Bank 1 |
P24FF | Reductant Temperature Too High |
P250A | Engine Oil Level Sensor Circuit |
P250F | Engine Oil Level Too Low |
P253F | Engine Oil Deteriorated |
P2562 | Turbocharger Boost Control Position Sensor 'A' Circuit |
P2563 | Turbocharger Boost Control Position Sensor 'A' Circuit Range/Performance |
P2564 | Turbocharger Boost Control Position Sensor 'A' Circuit Low |
P2565 | Turbocharger Boost Control Position Sensor 'A' Circuit High |
P2635 | Fuel Pump 'A' Low Flow/Performance |
P2688 | Fuel Supply Heater Control Circuit Low |
P2689 | Fuel Supply Heater Control Circuit High |
P2696 | Injector Data Incompatible |
P2AB0 | — |
P2ABD | — |
P2BAE | NOx Exceedence - NOx control monitoring system |
P34FF | — |
PF256 | — |
PF257 | — |
PF258 | — |
PF800 | — |
PF801 | — |
PFFFF | — |
U0001 | — |
U0002 | — |
U0074 | — |
U0075 | — |
U0101 | — |
U0102 | — |
U010E | — |
U0120 | — |
U0129 | — |
U012D | — |
U0131 | — |
U0140 | — |
U0155 | — |
U0168 | — |
U029D | — |
U029E | — |
U02A3 | — |
U0331 | — |
U0405 | — |
U040F | — |
U0412 | — |
U0413 | — |
U0422 | — |
U0423 | — |
U0426 | — |
U0427 | — |
U0431 | — |
U0433 | — |
U0469 | — |
U04B2 | — |
U059E | — |
U059F | — |
U05A4 | — |
U05AA | — |
U05AB | — |
U060F | — |
U0623 | — |
U0936 | — |
U0C82 | — |
U0C92 | — |
U1001 | — |
U1002 | — |
U1003 | — |
U1006 | — |
U1007 | — |
U1008 | — |
U1015 | — |
U1016 | — |
U1017 | — |
U1043 | — |
U1044 | — |
U1045 | — |
U11E9 | — |
U120F | — |
U12A3 | — |
U1405 | — |
U1406 | — |
U1407 | — |
U141F | — |
U1450 | — |
U1490 | — |
U1502 | — |
U1506 | — |
U150A | — |
U1700 | — |
U1706 | — |
U1741 | — |
U1800 | — |
U1801 | — |
U1802 | — |
U1818 | — |
U1819 | — |
U181A | — |
U1930 | — |
U1932 | — |
U1933 | — |
U1934 | — |
U1935 | — |
U1936 | — |
U1937 | — |
U1938 | — |
U1939 | — |
U193A | — |
U193C | — |
U193D | — |
U193E | — |
U1941 | — |
U194A | — |
U194B | — |
U194E | — |
U1950 | — |
U1952 | — |
U1956 | — |
U1958 | — |
U1959 | — |
U195C | — |
U197A | — |
U197C | — |
U197E | — |
U1980 | — |
U1984 | — |
U1986 | — |
U19AC | — |
U19AD | — |
U19AE | — |
U19B1 | — |
U19B2 | — |
U19B4 | — |
U19D1 | — |
U3FFF | — |
FAQ
Marelli MJ9DFH DTC codes — frequently asked questions
How many DTC codes does Map Decoder have for the MJ9DFH?
611 distinct diagnostic trouble codes, 374 of them with a description.
Where do these codes come from?
Each entry was measured on a real file: the address, the enabled value and the disabled value were read from an original and a modified binary. Nothing here is a generic OBD-II lookup table.
Can these codes be switched off on the MJ9DFH?
Yes — Map Decoder writes the value that was observed on this ECU rather than a guessed constant, and corrects the checksum afterwards.
Remove DTC codes on Marelli MJ9DFH
Map Decoder analyses Marelli MJ9DFH files, detects the maps and generates a verified patch with the checksum corrected.